Each system should have an expected lifespan of around years, which is certainly better than a conventional air con unit. So hopes are high for SoundEnergy's efforts to get this gear out to market. Since he's branched out into photography, video and audio production. In an interview with Forbes magazine , SoundEnergy CFO Roy Hamans says "this huge mechanical power will be transformed into a delta T [another temperature differential] down in the last two vessels by connecting them in reverse. Loz has been one of our most versatile contributors since This completely renewable technology could prove highly disruptive. Then, just as the heat differential was converted into a pressure differential, the pressure differential is converted back into another heat differential, this time in reverse. But thus far, nobody seems to have made it into the kind of commercial success that could make it a world-changing device.